DPE: Use a 64-bit buffer in call to QCBOR API to retrieve cert_id

The QCBOR API retrieves the cert_id using a pointer to a 64-bit
value, hence passing directly a pointer to a 32-bit cert_id
might break the API. Convert to a 32-bit value just before the
call to the derive_context() function.

Signed-off-by: Antonio de Angelis <antonio.deangelis@arm.com>
Change-Id: I49575900beb966cc8014f9dcb47872eb17034b43
1 file changed